#include	"apue.h"

int	glob = 6;				/* external variable in initialized data */
char	buf[] = "a write to stdout\n";

int
main(void)
{
	int	var;				/* automatic variable on the stack */
	pid_t	pid;

	var = 88;
	if (write(STDOUT_FILENO, buf, sizeof(buf)-1) != sizeof(buf)-1)
		err_sys("write error");
	printf("before fork\n");		/* we don't flush stdout */

	if ((pid = fork()) < 0)
	{
		err_sys("fork error");
	}
	else if (pid == 0)
	{
		/* child */
		glob++;				/* modify variables */
		var++;
	}
	else
	{
		sleep(2);			/* parent */
	}
	printf("pid = %d, glob = %d, var = %d\n", getpid(), glob, var);
	exit(0);
}
